Manifolding pen



Feb; vs, 1927.

A. raosauauzRG MANIFoLDING Pau Filed Jan. v. 1926 z-Sheets-Sheet 1 Feb.'8,l 1927.

A. ROSENBERG MANIFOLDING PEN Filed Jan. v, 192e 2 .Sheets-Sheet.v 2-

raa//z PlgggNToR' Patented Feb. 8, 1927.

ABRAHAM ROSENBERG, 0F FAR ROCKAWAY. NEW YORK.

MANIFOLDING PEN.

Application led January This invention is, primarily, a fountain penadapted for general use though more articularly intended to be employedwhen it'is desired to make a number of carbon copies of an originalnotation or entry. It has long been the universal tendency tomanufacture fountain pens of as light a weight as ossible and to usetherein nibs relatively. eXible or soft, to the end that lo the pen maybe light to handle and may write easily. Such a pen will make verysatisfactory original notations, but it is practically impossible tomake the satisfactory carbon copy under these conditions.

In some pens, the nib is relatively stiff and in such a pen a carboncopy may be made if the writer will bear down hard on the pen. Inpractice, however, this method of writing very quickly tires because ofthe pronounced muscular exertion and strain involved and' even then one,clearly readable carbon cannot be obtained.

The primary object of this invention is to provide a pen by which aplurality of carons may be produced without the use of muscular strainor fatigue and carbons thus produced will be clear and legible. I obtainthis result, generally speaking, by the Yweighting of the en so that thepressure imparted to the ni by such weight will obviate the necessity ofmuscular strainby the Writer. When using such a pen, the pcn may be heldto its work in the usual manner, but the added weight of the pen itselfwill be sufficient to insure proper manifolding.'

The weighting of the pen may be accomplished in different ways withinthe purview of this invention, but, in one of its preferred practicalforms,the barrel of the pen is constructed'with two concentric chambers,one of which contains the ink supply for the nib'and the other of whichcontains a suitable weight. A single solid weight or a number of smallerweights may be employed,

but I find in practice that it is highly advantageous to employ mercuryas the weighting medium. Because of its mobile nature, and high specificgravity, it will not only adapt itself to the diderent positions of thepen, and thus produce a nicely balanced implement, but when the pen islaid upon a desk or other support, the inertia of the mercury willpreclude rolling of the pen.

A pen is thus produced' which will have sufficient weight to properlyfunction in the 7, 1926. Serial No. 79,716.

productionof manifold copies without excessive strain on the writer.

In order to employ a weighted pen of the character described, arelatively stiff or ri id nib is necessary and the invention inclu es anespecially constructed nib well able to stand the strain, and alsonon-corrosive. I find that a steel pen is best adapted to my purposesand to preclude corrosion, the surfaces of the pen nib are preferablycoated with a baked enamel or porcelain finish, although gold platinglias been found to give very satisfactory results. The invention alsoconsists in a nib employed in conjunction with this pen.

Another important feature of the invention resides in the automatic feedof ink to the barrel or reservoir of the pen. In all fountain pensheretofore employed, it has been the practice either to fill4 the inkreservoir with a dropper or to provide levers, pistons and the like toproduce suction within the reservoir for the urpose of drawing inkthrough the nib fee ing channel when it is desired to charge thereservoir. i

My experience has s hown that the latter practice although moreconvenient than the former, usually results in damage to the nib and inaccordance with this invention simple and efficient means is providedfor the charging of the reservoir through the opposite end of the penand without any tendency to spill the ink.,

According to this phase of the invention, the top end of the pen isprovided with a Valved ink inlet which valve may be either adapted formanual or automatic operation ed to be charged with ink. The ink issupplied primarily from a suitable external source which may be of anysuitable capacity. InY practice. the ink at the source of supply ispreferably maintained in relatively large bulk and is adapted to Howinto the reservoir of the pen when said reservoir needs recharging,through a flexible duct or tube. This tube may, in practice, bepermanently secured to the pen or may be detachably associatedtherewith. In the former case, it may serve as a retainer for' the pento maintain it. against loss or theft. In the second place, the pen isadapted to be carried from place to place and to be ycharged whendesired through a temporary attachment to the feed tube. v

By this arrangement, the pen may be and through this inlet the reservoiris adapt-' readily and expeditiously filled with ink without anyspilling or Waste of ink. It will of coursebe understood in thisconnection that when the reservoir is filled the valve is closed topreclude spilling of the ink from the top of the pen.

' Features of the invention, other than those specified, will beapparent from the hereinafter detailed description and claims,

when read in conjunction with the accommodified form of valvearrangement.

Figure 4 shows a modified form of weight illustrated as a lead tube;and,

' Figure 5 shows a modified form of pen in .2

central section.

Referring to the drawings, 1 desi nates the barrel of the'pen, which isprovi ed at one end with a nib 2 and is openat its other end andinteriorly threaded at 3. The major portion of the barrel is hollow andin this hollow portion is positioned a sleeve- 4, the innerend of whichis threaded and is screwed into a threaded pocket in the forward portionof thebarrel. Thelsleeve is held against removal by a set screw 5 which,in practice, is covered over by wax as shown at 6, so that when the penis polished the presence of the set screw will notbe appar-- ent. Thisscrew locks the parts together, so lthat they can not be removed andtampered with.

The sleeve 4 extends slightly beyond the upper end of the barrel and iscentralized by means of a bushing 7 which screws into the barrel andalso screws on to the sleeve.

The sleeve 4 divides theinterior of the barrel into two chambers 8 and9, the former of which is adapted to contain suitable weighting meansand the latter of which is adapted to contain ink to be f ed to the nib2. In practice, different forms of Weight,` may be employed withoutdeparting from this invention, and I find it very practical to employmercury in this connection, The mercury is introduced into the chamber 8when the bushing 7 is removed and thereafter the bushing is replaced topreclude the escape of mercury from the chamber. The requisite amount ofmercury is placed in the chamber to impart the desired weight to thepen, so that by its own inherent mass, sui- Cient weight will be appliedto the nib to insure the desired number of carbon copies. The advantageof. employing mercury is that when the pen is laid down on a flatsurface, the mercury will assume the position shown in Figure 2 andv itsinertia will preclude rolling of the pen, so that the latter will notfall off of the surface and become damaged. l

It is Within the scope of this invention to tory results may be obtainedif the pen i;

coated with a baked porcelain or enamel finish. Such a .pen will nevercorrode and will ymoreover be suiiciently sti or rigid or withstand thepressure necessary for the making of the carbon desired. v

4Ink is fed from the chamber 9 to the pen 2 in the construction ofFigure 1 through an ink feed channel 10 which, if desired, may haveassociated therewith a manually operable valve 11, lso that the supplyof ink can be positively shut 0H if desired. In practice, the ink in thechamber 9.may be replenished from time to time in any suitable way,since in one of its aspects the present invention embodies a weightedpen. However in another aspect, the invention provides for the easy andconvenient filling of the chamber 9 with ink. This may be accomplishedin several .different ways, one of the most satisfactory of which forgeneral purposes, is the feed of ink from a suitable source or reservoirwherein the ink is n0rmally maintained in bulk. Thus, in Figure 1, Ihave,'for the purpose of illustration, shown a relatively large bottleof ink 12 supported in any suitable manner in convenient location andwith' this bottle is 'associated the tube 13 through which ink can befed to the chamber 9.

lill) The tube 13 may be either permanently or In detachably securedtothe barrel of the pen. In Figure 1, the detachable connection is shown'as embodying aV suitable union`14 having a threaded shank adapted toscrew into the threaded interior of the upper end of the sleeve 4, sothat ink may flow from the bottle 12 through the tube and into thechamber 9. It is desirable, however, to provide against the spilling vofink from the l channel after the illing operation and in the event thatthe tube is removed from the adapted to cooperate with the seat 16 andnormally held in engagement therewith by means of a s ring 17. Thespring normally forces the va ve to a seat, but when the coupling isscrewed on to the sleeve 4 for the' purpose of filling the chamber 9,laterally projecting ears 18 formed on the valve stem, will be engagedby the union 14, and the valve will be unseated to permit the flow ofink into therchamber. A valve 19- is preferably associated with the tube13, so as to control the ow of ink through said tube. In some instanceswherethe bottle or other container 12 is large and it may not bedesirable to feed by gravity, suitable means may be provided for placingthe ink in the receptacle 12 under pressure so that as soon as the valve19 is open, it will be fed under pressure to the chamber 9. Y

In Figure 1, the tube is shown as having a detachable connection withthe pen, but,

in Figure 3, the connection between the tube 13 and the pen is shown aspermanent and instead of employing a spring actuatedl v valve, theconstruction of Figure 3 embodies a manually operable valve 15, Y Thestructure of Figure 3 is particularly adapted for use where itis-desired that the pen shouldv be attached in such manner as topreclude its misplacement or theft. So long as the tube is attached tothe pen, it will be properly secured against loss or theft.

The construction of Figure 1 is particularly adapted for use on a penadapted to be carried about since the pen can be removed from the tubeand this operation will automatically eii'ect the sealing of the valve15. In the arrangement of Figure 1, moreover, it is highly practical toemploy a single supply reservoir for a large number of pens. Forexample, a large ink bottle in an otice may be equipped to supply allthe pens in the oiice and this method of supplying pens from a commonsource either by gravity or pressure does not only appl to weightedpens, but is equally applica le for use in pens'which are not weighted.The advantage of this arrangement is that pens may be quickly and easilyfilled without any spilling of ink and wlthout soiling the hands,furniture or other extraneous articles.

Figure 5 of the drawings shows a modified arrangement of a weighted pen.In this embodiment of the invention, the sleeve 4 is omitted and the topof the pen is adapted I to be closed by a solid plug 7a. A tubular leadweight 8b such as shownin Figure 4, is positioned in the barrel and inlieu of the sleeve 4, a tube 2O of glass, celluloid or other material isadapted to be received in the barrel.

The upper end of the tube is closed and the lower end of the tubecarries a nibr?.a

which may conveniently be held in the. open end of the tube by a cork 21of rubber, cork or other suitable material. provided with an ink channel22 lthrouglh which ink is fed-'t0 the nib. The use of t e cork 4as shownis very economical. The

The cork is f tubes 20 can be filled with ink and corked `4 i in anysuitable manner.

When it is desired to use the tube to feed ink to a pen, theconventional cork is removed andthe nib 2a and cork 21 introduced in itsstead. The plug 7a is then removed and the assembled tube and nibintroduced into thebarrel, whereupon the plug 7 is returned to position.The lower end of the barrel is arranged to permit the nib to projecttherethrough, while the shoulder 23 serves as a stopN for the tube 20.This constructionfis very simple and economical to manufacture and yetprovides a thoroughly efficient weighted pen adapted formanifoldingpurposes.

In the pen as thus for described, the barrel is provided with twochambers, one of which contains the weighting medium and the othertheink. I am aware, however,

that the pen may be weighted by slipping over the exterior ofxthe barrela tubular sleeve of the desired weight, such, for example, as a leadsleeve and this sleeve may be made to fit the barrel snugly and with anice sliding it or threaded connection therewith, so that it can beadjusted longitudinally of the barrel to properly balance the pen to theparticular taste of the user.

The ,foregoing detailed description discloses the invention in itspreferred practical forms. I am aware, however, that the inventionembodies numerous novel features, some of which may be employed withoutnecessarily employing them all. For these reasons, the invention is notlimited to the specific showings of the drawings, but is to be construedas fully lcommensurate with the appended claims.

Having thus fully described the inven-` tion, what I claim as new anddesire to secure b v Letters Patent is:

l. A manifolding pen embodying a barrel, a nib associated with one endthereof, an ink reservoir within and coaxial with the barrel andcommunicating with the nib, and a weight positioned within and alsocoaxial with the barrel to' facilitate the making of carbon copies. i

2. A manifolding pen Aembodying a barrel, a nib associated with oneendthereof, an ink reservoir within and coaxial with the barrel andcommunicating with the nib, and an Vannular weight carried by the barreland coaxial therewith to facilitate the making of carbon copies. 3. Amanifolding pen embodying a barrel provided therein with a plurality ofcoaxial chambers, one of which is adapted to contain weight to the pento facilitate the making of carbon copies.

4f. A manifolding fountain en, the barrel y of which is. formed with aurality of coaxial chambers, one of whic 1 is adapted to constitute theink reservoir for the pen and the other of which contains mercury inSullicient quantity to impart the desired weight to the pen.

15. A manifolding fountai/n pen embodying a hollow barrel provided atone end with a nib, a sleeve fitted into the barrel and coaxialtherewith to form within the barreltwo coaxial chambers, the center ofwhich is adapted to contain ink to be fed to the nib, a

A weighting medium contained Within the other chamber, vand means forclosing the top ends of both chambers. 6. A manifolding fountain penembodying ahollow barrel provided at one end with a nib, a sleeve fittedinto the 'barrel and coaxial therewith'to form within the barrel twocoaxial chambers, the center of which is adapted to contain ink to befed to the nib, a quantity of mercury contained in the other chamber,and means for sealing said latter chamber against the inadvertent escapeof mercury.

7. A fountain pen embodying a hollow barrel provided at one end with anib and constituting a reservoir having an ink passage leading to thenib, a source of ink supply cxteriorly of and separate from the barrel,a conduit extending from the ink supply to the reservoir andcommunicating therewith through a valved inlet.

8. A fountain pen embodying a barrel` provided at its lower end with anib and hollow to provide within the barrel an ink reservoir having avalved ink inlet atvthe upper end of the barrel through which ink may bcintroduced into the reservoir, in combination with a source of inksupply, a flexible tube leading from said supply and provided at itsfree end with a union adapted for detachable connect-ion to the valvedinlet of .the pen, whereby ink can be fed from the said supply to thevalved inlet when it is desired to charge the reservoir of the pen. A

In testimony whereof I have signed the foregoing specification.

ABRAHAM RosENBERG.

